Charging device for blast furnaces



Jan. 20. 1925.

A. M. BARTELMUS CHARGING DEVICE FOR BLAST FURNACES Filed Feb. 17, 1922 2 Sheets-Sheet l jan, 26. N525.

A. M. BARTELMUS CHARGING DEVICE FOR BLAST FURNACES 2 Sheets-Sheet 2 Filed Feb. 1v, 1922 Patented Jan. 2G, i925.

UNITED STATES ranas PATENT OFFICE.

CHAR-GING DEVICE FOR BLAST FURNACES.

Application filed February 17, 1922. Serial No. 537,341.

To all 10710171. t may conce/fa.'

Be it known that I, AUGUST MARIA BAR- 'rnLMUs, a citizen of the Republic of Czechoslovakia, residing at Losselgasse 4, Brunn, Czechoslovakia, have invented Charging Devices for Blast Furnaces, of which the following is a specification.

In the charging devices for producers, blast furnaces and the like as used hitherto, in which the hopper is closed by a double valve, each valve has its own valve gear with its own hand lever, each valve being opened independently by operating its hand lever. The charging device according to the present invention differs from these well-known charging devices by the two valves having a common opening gear and by the provision of fixing means adapted to hold one valve in the closed position or an open position relatively to the other valve. The arrangement is substantially such that the large valve is suspended by means of a member adapted to be tensioned or slackened (a chain or the like), so that, when the slackable member is tensioned, the valve is lixed. The tensioning of the slackable member (chain or the like) is possible independently of the opening movement, wherebyY the valve can be secured from Opeliing and kept in the closed position, while onthe other hand it may be brought about by the opening movement, the lift of the opened valve being capable of being limited by the adjustment of the slackable member, while the other valve as well can be moved into the open position by the further opening movement. Thus, either the small valve .alone may be opened (central Filling) or the large valve alone (marginal filling) or both the large and the small valve (central and marginal filling). Tf the large valve be suspended from a plurality of slackable members, for instance three chains, each of which is adapted to be tensioned or adjusted independently to any required maximum amount, the charge may be fed in at any side of the rim and the height of feed in the whole of the feeding space may be completely equalized.

In the accompanying drawing Figs. l, 2, 8, -i and 5 are sectional views through the hopper of a charging-device and through the valves of my invention, the valve-mechanism being shown in elevation, and the views showing different positions of the valves.

The arrangement consists substantially of a. double cone valve l, 2, the smaller cone l of which forms the seating for the large cone 2, while the larger cone 2 closes the hopper 3. The large valve 2 is suspended from chains 4 and rods 5 (for instance three chains and rods), of which each chain is adapted to be tensioned by tensioning means consisting of a crank 6 and a clamping device. The smaller valve 1, which forms the seating of the large valve 2, is suspended by means of a rod 9 to a hand lever 7, 8, which is pivoted in the hopper. `When the chain tensioning cranks 6 are in the position I, all the chains will be in tension and the large valve cannot be lowered and moved into the open position. Hence, on the hand lever 7, 8 being operated, only the small valve is opened, causing coal or the like from the hopper to strike against the inwardly directed sides of the cone 2 and to fall into the middle. )Vhen the chain tensioning cranks 6 are in the position II, the4 chains 4 will be slack. Hence, on the hand lever 7, 8 being operated, first of all the large valve 2 will be opened, while the valve l remains closed owing to the weight of the valve 2. )Vith the valve 2 in the open position the charge will be fed around the sides only. This feeding around the sides only is only possible until the chains 4 are tensioned and the valve 2 is suspended from the tensioned chains. On the hand lever 7, 8 being further operated with the chains in tension, the small valve 1 will also open, whereupon coal or the like can fall into the middle as well.

Thus the arrangement according to the invention makes it possible to charge in three different ways, firstly feeding in the middle with the chains in position I, secondly feeding around the sides only with position TT and thirdly feeding in the middle. and around sides with position TT, on the valve l being lowered further.

By the chain tensioning cranks G being placed in suitable intermediate positions, the proportion of feeding in the middle to feeding around the sides may be regulated at will and, by tensioning only one or two chains, the feeding may be carried out in any direction around the sides, as shown in F ig. 5.

On the closing movement taking trplace, the smallivalve lcarries the large'ivlvewalong with it, the small valve being kept closed by the Weight of the large valve.

l. In a charging apparatus forblast-furnaces, the combination With a hopper, a valve, having a central open-ing, adapted to contact With the marginal edge of the discharge end of said hopper, thus Closing :passage between .said *valve-fand* said marginal edge, a plurality of valve-suspen- -sion members pivotally Kconnected -to 'said Naive, .individually movable members carried byfsaid' hopper .and connected with said valve-suspension members 'and'.adapted, in one position, `to hold ,said valvesuspensiofn members in raisedil position Withfthe valve closed'and, in'another position, to kpermit said valve-suspension members to slacken or move downward, a smaller Averticallymovable valve yfor opening 'and closing the V( )penin-g inthe larger valveyiand adapte-d to support said larger valve .when the latters suspensionfmembers are slaQkened, fand means :for opening-rand closing said' smaller valve. y

`E2. In a chai-ging apparat-usifor blast-fur inacesof the character-specified in claim l, :said mannally-movableA members comprising cranks rotatably carried by vsaid hopper,

y 3. .ln la( charging lapparat-.us 'for blast-furyhaces, the combination :with .a hopper, -a

valve havin a centralofeninw'ada tedfto contact with the marginal edge of the discharge end of said hopper, thus closing passage betiveen said valve and said marginal edge, v`a ,plurality of valvefsuspension members pivotally rconnected to s-said valve, mechanism supported by said hopper for lholding any one or more of said valve-sus pension members `in raised position, a smaller vertically-movable valve for opening and elosing'the opening in the larger valveaandiadaptedto support said larger valve when the latters suspension-members are slackened, -fand `means, also supported by said hopper, -for opening Y and Aclosing saitls1rialfler valve. y

4. In Y,a.-charging :apparatusfor blast Ifur- |haces, the combination Withwa hopper,v of "a 1valve, having ia central opening, adaptedto Contact with :the ma'rginalffedge of the dischargeend oitl said-hopper,thus closingip'ass sage between `said marginal edge'fandf-said valve, a smaller valve 'orelosing'f the vcenltral openinginzsaid larger valveand mova- -ble independently'of ther-:larger vfalveto `ipermit j passage `through vsaid centralv openfing, andmechanism for causing vsaid vgalve's :totiltin-'fany one of aiplurality -ofdirec- .tions,'so as to dump the contentsaof' the hopg per atI any: one of a numberof` points'along the marginal edge of thelischargeendoff the hopper, said' mechanism including la: plu- 'rality "of sus'pensionsmembers for the largerivalvm and 'af plurality of individuallyzand independently-movable frmembers for selectively'lowering'.or Slae'kening said suspension-members.

AUGUST MARIA :BAR'LELMUS 

